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Positive Language in Ophthalmology Abstracts: A 30-Year Sentiment Analysis

Eunoo Bak¹, Young Kook Kim²

¹Department of Ophthalmology, Uijeongbu Eulji Medical Center, Uijeongbu, Korea; Department of Ophthalmology, Eulji University School of Medicine, Daejeon, Korea.

|September 28, 2026

Abstract:

Positive language in ophthalmology abstracts increased 2.8-fold between 1996 and 2025, with acceleration after 2021. The trend persisted after adjustment for abstract length and study characteristics, suggesting a substantive shift in scientific language.

Keywords:

VADER bibliometrics natural language processing ophthalmology positive language research reporting sentiment analysis

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